The DE inversion is implemented in LCDIFv3 driver and is no longer
needed in the LDB bridge which does not invert the DE signal. Drop
the inversion.

Fixes: 463db5c2ed4ae ("drm: bridge: ldb: Implement simple Freescale i.MX8MP LDB 
bridge")
Signed-off-by: Marek Vasut <[email protected]>
Cc: Laurent Pinchart <[email protected]>
Cc: Lucas Stach <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Peng Fan <[email protected]>
Cc: Robby Cai <[email protected]>
Cc: Robert Foss <[email protected]>
Cc: Sam Ravnborg <[email protected]>
Cc: Thomas Zimmermann <[email protected]>
To: [email protected]
---
 drivers/gpu/drm/bridge/fsl-ldb.c | 17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/drivers/gpu/drm/bridge/fsl-ldb.c b/drivers/gpu/drm/bridge/fsl-ldb.c
index b2675c769a550..10077d4aed358 100644
--- a/drivers/gpu/drm/bridge/fsl-ldb.c
+++ b/drivers/gpu/drm/bridge/fsl-ldb.c
@@ -74,22 +74,6 @@ static int fsl_ldb_attach(struct drm_bridge *bridge,
                                 bridge, flags);
 }
 
-static int fsl_ldb_atomic_check(struct drm_bridge *bridge,
-                               struct drm_bridge_state *bridge_state,
-                               struct drm_crtc_state *crtc_state,
-                               struct drm_connector_state *conn_state)
-{
-       /* Invert DE signal polarity. */
-       bridge_state->input_bus_cfg.flags &= ~(DRM_BUS_FLAG_DE_LOW |
-                                              DRM_BUS_FLAG_DE_HIGH);
-       if (bridge_state->output_bus_cfg.flags & DRM_BUS_FLAG_DE_LOW)
-               bridge_state->input_bus_cfg.flags |= DRM_BUS_FLAG_DE_HIGH;
-       else if (bridge_state->output_bus_cfg.flags & DRM_BUS_FLAG_DE_HIGH)
-               bridge_state->input_bus_cfg.flags |= DRM_BUS_FLAG_DE_LOW;
-
-       return 0;
-}
-
 static void fsl_ldb_atomic_enable(struct drm_bridge *bridge,
                                  struct drm_bridge_state *old_bridge_state)
 {
@@ -241,7 +225,6 @@ fsl_ldb_mode_valid(struct drm_bridge *bridge,
 
 static const struct drm_bridge_funcs funcs = {
        .attach = fsl_ldb_attach,
-       .atomic_check = fsl_ldb_atomic_check,
        .atomic_enable = fsl_ldb_atomic_enable,
        .atomic_disable = fsl_ldb_atomic_disable,
        .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
-- 
2.35.1

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